DS1314S-2

Controllers Overview

The DS1314S-2 is a CMOS nonvolatile memory controller designed to convert standard CMOS SRAM into nonvolatile memory. It operates within an industrial temperature range of -40°C to +85°C and supports supply voltages of 3.0V to 3.6V (TOL=GND) or 2.7V to 3.3V (TOL=VCCO). The device features automatic power-fail detection, battery backup switching with less than 0.2V drop, and lithium cell monitoring via a Battery Warning output. It is housed in an 8-pin SOIC package.

Controllers Feature Summary

• Converts CMOS SRAM into nonvolatile memory by managing power sources
• Unconditionally write-protects SRAM when VCC is out of tolerance
• Monitors lithium battery voltage and signals low-battery conditions
• Provides processor reset during power failure and system power-up

Controllers Applications

• Battery backup for CMOS SRAM modules
• Lithium battery capacity monitoring systems
• Processor-based systems requiring power-fail protection

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and RoHS compliance status. Ensure the TOL pin configuration matches the required VCC trip point for your application. Confirm availability through authorized distributors as lead times may vary.

Controllers Selection Notes

Select this component for applications requiring reliable NVSRAM conversion with integrated battery health monitoring. Choose based on the required operating voltage range and whether the reset function is needed. Verify that the 8-pin SOIC package fits the board layout constraints compared to other available variants.

Controllers Part Context

The DS1314 series includes multiple package options such as 8-pin DIP, 16-pin SOIC, and 20-pin TSSOP. The DS1314S-2 specifically denotes the 8-pin SOIC variant. Other versions like the DS1314E+ offer additional pins for reset functionality in larger packages.

Controllers Replacement Considerations

DS1314S+